.active {
  user-select: none;
  background-color: red;
  line-height: 100px;
  height: 100px;
  text-align: center;
  color: white;
  font-size: 50px;
}


.box {
  user-select: none;
  background-color: blue;
  line-height: 200px;
  height: 200px;
  text-align: center;
  color: white;
  font-size: 50px;
}
